Cab underframe



Def 27, 1932-- W. M. SHEEHAN v1,891,954

CAB UNDERFRAME Filed Feb. l5. '1929 5 SheetS-Shebl r sa a Dec. 27, 1932. w. M. sHEEHAN CAB UNDERFRAME Filed Feb. l5, 1929 3 Sheets-Sheet 2 R ,O N W l Dec. 27, 1932.

w. M. SHEEHAN 1,891,954

CAB UNDERFRAME Filed Feb. 15, 1929 s sheets-sneer 5 dg Patented Dec. 27, 1932 UNITED STATES PATENT oFFlcE WILLIAM M. SHEEHAN, OF ST. LOUIS, MISSOURI, ASSIGNOR, BY MESNE ASSIGNMENTS,

TO GENERAL STEEL CASTINGS CORPORATION, OF GRANITE CITY, ILLINOIS, A COB- PORATION OIF DELAWARE CAB 'UNDERFRAME Application iledebruary 15, 1929. Serial No. 340,197.

My invention relates to railway rollingl stock and consists in a novel underframe structure for use in railway vehicles and in the assembly of certain superstructure elements therewith. I illustrate my invention as applied to oil-electric locomotives but its use is not limited to such embodiment. It has been the practice to mount the oil engines on top of the underframe and one of the objects of my invention is to form the engine subbases as a part of the underframel and located below the top thereof thereby decreasing the total depth from the center line of the engine crank shaft to the bottom of the underframe. This lowers the center of gravity of the locomotive and reduces the total weight of a tructure employing a separately formed subase.

Another object of my invention is to form in the underrame a compartment below an engine crank shaft to receive lubricating oil and having a removable oil sump. I also desire to provide the above mentioned compartment with suitable openings and closures therefor whereby the lower connecting rod bearings may be inspected.

Another object of my invention is to provide a box shaped center or draft sill to form a more rigid structure and to combine therewith intermediate sills and side sills serving as supports for the upper portions of engines and for generators. Associated objects are to obtain a minimum weight and maximum rigidity in a given structure so as to withstand the vibrations of the engine and weaving of the underframe as a result of vertical track reactions or longitudinal buliing and pulling forces which otherwise would result in disalignment of engine crank shaft bearings and generator shaft bearings.

Another object of my invention is to form an engine crank shaft bearing integrally .with the sub-base.

Another object of my invention is to locate fuel oil reservoirs or other liquid compartments in the underrame and preferably to form these reservoirs integrally with the underframe structure. In a locomotive having a plurality of engines disposed on opposite sides of the longitudinal center line ofthe vehicle, it is desirable to locate these liquid compartments on opposite sides of the vehicle also and it is another object of my invention to connect these compartments with suitable passageways so that the liquid level therein may be maintained constant to maintain an even weight of liquid on each side of the underframe.

Another object of my invention is to provide in the underframe structure suitable space for locating the water circulating pipes so that the same may be run entirely around the underframe. I

Another object of my invention is-to provide an underframe having diil'erent levels for supporting the engines and generators and for supporting the operators compartment'and, at the same time, to provide for a substantially horizontal lower edge of the superstructure side wall applied to the underame.

The above and various other detailed objects of my invention are attained by the structure illustrated in the accompanying drawings in which- Figure 1 is a top view of the Vunderframe with some piping attached thereto.

Figure 2 is a vertical section taken on the longitudinal center line of the underframe.

Figure 3 is a side elevation of the same.

Figure lis an end view of the underframe. Figures 5, 6, 7 and 10 are vertical transversesections taken on the lines 5 5, 6 6, 7-7 and 10-10 of Figure 1.

Figures 8 and 9 are vertical longitudinal 'sections taken on the lines 8-8 and 9--9 of Figure 1.

Preferably, the underframe is an integral structure formed by cast-,ing or weldin and such construction makes it possible to o tain many of the objects set forth above far more effectively than would be possible with a built-up structure. The main longitudinal member of the underframe is a center sill of box shaped section comprising vertical sides 1 and horizontal top and bottom walls 2 and 3, respectively, which are provided with openings to lighten the structure and to provide access to piping and other equipment which may be located Within the center sill. Intermediate sills 4 and side sills 5 parallel the center sill 1-2-3 and the bolsters 6, and end sills 7 connectthe longitudinal sill members and are formed integrally therewith. Transverse braces 27 connect the intermediate and side sills at intervals.

Each side wall 1 of the center sill forms one side of the sub-base of an oil engine and the corresponding portion o the adjacent intermediate sill 4 forms the other side of the engine sub-base. These sub-base forming portions of the sills are provided with integral transverse Webs 8 (Figure 8) Which reinforce the structureand also mount the lcrank shaftA bearings 9. Additional ltransverse reinforcing elements are shown at 10 below Webs 8. The intermediate sills 4 are of greater depth adjacent the engine structure, as best shown in Figure 3, and at these portions are provided with openings 11 through which the lower crank shaft bearings may be inspected. These openings will be surrounded by suitable pads 12 which may be `finished to receive removable cover plates 13. At least one plate will have a iilling spout 40. l,

Beneath each engine is provided a detachable structure 14 which forms an oil pan 15 immediately lbelow the. sills and also in- Acludes aV compartmentlG-forlthe lubricant supply.

' Between one endet each sub-base and the adjacent bolster, the center. sill and one intermediate sill 4 is modified as shown at in lVignre 7 to accommodatethe lower portion of the generator thisrvstructure be-` ing duplicatedY at'diagonally'opposite portionsA of the inter-bolster portion ot ther underframe. j, y

On the opposite. sides of the bolsters from j element 17, I provide yfuel reservoirs or comi partments 18, the sidewalls of whichare` formed bythe center and intermediate sill Webs, and the compartment top and bottom l"walls 19 and 20, respectively, serve to form,

. lwith the side wall, a box shaped structure "which is closed at its ends by one Vof the bol- 'A ster webs 21 and'lby ,a suitable additional ,transverse vweb 22..' A 'by-pass 23 connects `their compartments on` ,opposite sides of the1 longitudinal center line and extends through the center sill, Another by-pass 24 extends 'f'fioin'one pair of compartments through the Y bolster andis provided with aitti'ng where-l v by' the compartments at the opposite ends of yltheil'nderframemay be connected with each i., lolther by suitablepipng 25 which 'leads to g N the fuel 'oil' sumpf26 locatedq atv alower level G95 l:be pumpedtolthe engines. The top Walls` "Hlfof theA reservoirs :are provided with cored `,.lfopenings 41 to suit moldingconditions and.

Ithan the tanks and froinwhich the'fuel may 'for 4cleaning out the core sand, Whiclropenings are closed by the plates 42 welded on .different ways.

as shown at W. The fuel oil inlet and vent is shown at 43. The openings and plates vcanube provided in either the top or bottom wa Bolsters vo and braces 27 have suitable openings 28 in substantial alignment longitudinally of the underframe and these openings are approximately the same level as openings 29 provided in the center sills and intermediate sills just inside of the end sills. The water circulating pipes (not shown) for cooling the engines and for train lines extend through these openings 28 and 29 entirely around the underframe and I believe it is broadly new construction to provide an unobstructed path for such piping adjacent to the sides and ends of a locomotive underframe. A

The truck motors (not shown) are air cooled -from an air current generated within the engine room.v An'vair blower 44 is located substantially over-each truck center plate C and a conduit 30, (Figure 5) is Jformed in each bolster above thetruck center plate and the walls ot this conduit also serve as bolster' elements. This and similar structure l1s detailed and describedin'my co-'pending application Serial Number 299,331, filed August 13, 1928, now Patent-No. .1,766,406 of June 24, 1930. I l

The lowerportion of the Cab side and end sheets 31 are secured to the'underframe by angles 32 mounted on suitable pads 33 on top, vof the underframe, .the b ottomiedges of the sheets projecting below thevangles 32 and contactingvwith the4 outer edgesnof jpads 33. The `top of 4theintermediate yportion `01": each side sill is ona higberlevel than `the top of the end portions of thesilly and, yat this higher portion, the superstructure side sheets, are fastened. to a 4finished :pad .34jvvhich is spaced sill and. is somewhat vwitiler''than ,thelouter edgesy :of pads 33.l ,'llhisprovidesj-ora .Acontinuous lower support for the side sheets extending iny ahorizontal ,line from .end xto end .of the underframe.

j Tlie side sheetsr intermediatetheend aportions arebraced b v means;ofjvertically dis'- DOSed. lchannels 35 ivvhich are turned inward- `lv at;.their,loWQI' 'ends varid secured tothe -top secin'edtof the sidey sheetsv'jan'd,to'innerparj titions 38 orthefloormay. be mountedupon stritigers (not shown)` i carried on' the lunderframestruc'ture.

Obviously, the methodyof attaching the side' fsletsmvbe varied.Substantiallvse dif` ferent ys t ructural `'elements `may be used and Athej'nirt's riveted or welded together in many lIt is obvious lthat in astructure the 'A size and complicationsdescribed above,`lmany parts -may be modified or eliminate'dvvithout aiectingMthe integrity of the remaining structure. any of the parts which are shown as formed integrally with the main underframe could be formed separately therefrom and attached thereto. Also, many parts shown separate could be formed integral without departing from the spirit of my invention. The liquid compartments have been shown on this locomotive as 1ocated beyond the bolster, but their location at other places within the cab underframe are considered as coming within the spirit of this invention. Also, connecting elements can be modified to suit the ditferent locations.

It will be understood that my invention is not limitedto the complete combination of all of the elements shown and I contemplate the exclusive use of such variations in the described structure as come within the scope of my claims.

I claim:

1. In a railway vehicle, an underframe insaid underframe, and a liquid compartment,

located between said sub-base and the end of said underframe and below said cab and formed integrally with,k said underframe.

3. In a railway vehicle underframe, elements for mounting an engine, members for supportingr a cab floor, and a liquid compartment formed in said underframe between said elements and the end of said underfram and below said members.

4. In a railway vehicle underframe integral structure, elements for mounting an engine, membersfor supporting a cab ioor, and a liquid compartment formed in said structure between said elements and the end of said unldertrame and below said elements and memers. f

5. In a railway vehicle underframe, cab ioor supporting members, and a plurality of liquid compartments formed in said underframe and below the top of said members and in balanced relation on opposite sides of the longitudinal center line of said locomotive.

6. In a railway vehicle underframe, cab floor supporting members, and a plurality of liquid compartments formed in said underrame and below the top ot' said members and in balanced relation on opposite sides of the longitudinal and transverse center lines of said locomotive.

7. In a railway vehicle underframe structure, a plurality of separated liquid compartments each comprising a complete closed tank, said compartments being 'formed in said structure and arranged in balanced relation on opposite sides of the longitudinal center line of the structure.

8. In a railway vehicle underframe, a center sill, a longitudinal sill spaced therefrom,

ing side walls and substantially horizontally top and bottom walls integralwith the casting, there being an opening in at least one of sail horizonal walls, and a separately formed plate secured to said casting for closing said opening.

10. In a railway vehicle, an underframe having a center sill member, a bolster member, an end sill, and a longitudinal sill member spaced from said center sill member, a cab floor, a liquid compartment formed integral with said casting below said floor, said compartment being located in the space between said bolster and end sill and between said center sill member and said longitudinal sill member, said members having vertical webs comprising side walls of said compartment.

11. In a railway vehicle, an underframe having a center sill member, an end sill member, a bolster member, and a longitudinal sill member spaced from said center sill member, a cab floor, a compartment adapted to contain liquid and formed integrally 'with said casting and located below said floor in the space between said members on one side of said underframe, another compartment adapted to contain liquids located on the opposite side of said undert'rame, said compartments being arranged substantially symmetrical with respect to the longitudinal center line of said casting. n

12. In a railway vehicle integral underframe structure, a center sill, separated liquid bolster, a liquid compartment comprising a vtomplete closed tank located at one side of said bolster, and a conduit integral with said bolster and extending from said compartment through said bolster.

16. In a 'railway vehicle underframe, a bolster, a liquid compartment at one side of said bolster and formed integrally therewith, and a conduit integral with said bolster and compartment and extending through said bolster.

17. In a railway vehicle underframe, a bolster, a sill integral therewith, a liquid compartment at 011e side of said bolster and said sill, and a conduit integral with said bolster and sill extending from said' compartment through said bolster and sill.

18. In a railway vehicle underframe, a center sill, liquid compartments located on opposite sides of said sill, said compartments being located equi-distant from the longitudinal center line of said underframe and the tops of saidl compartments being spaced below the ltop of said sill.

19. In a railway vehicle underframe, a center sill, liquid compartments located on opposite sides of said sill, said compartments being located equi-distant from the longitudinal center line of said underframe and the tops of said compartments being spaced below the top of said sill, all of said elements being formed in a one-piece casting.

20. In a railway vehicle underframe integral structure, a center sill, bolsters, end sills, liquid compartments in the spaces between said bolsters and end sills, on each sideof said center sill, and engine sub-bases between said bolsters on each side of said center sill.

21. In a railway vehicle underframe integral structure, a center sill, bolsters, end sills, liquid compartments in the vspaces between said bolsters and en'd sills on each side of said center sill member, and engine crank cases between said bolsters and on each side of said center sill.

22. In a railway vehicle underframe, the combination of a liquid compartment and an engine sub-base spaced therefrom and integral therewith. l

23. In a railway vehicle underframe integral structure, the combination of a liquid compartment and an engine sub-base integral therewith, said compartment being located below the top of said structure.

24. In a railway'vehicle underframe integral structure, a center' sill, longitudinal sills spaced from said center sill, said sills forming engine sub-bases on opposite sides of the longitudinal center line of the underframe.

25. A railway vehicle underframe having a center sill, longitudinal sills spaced from said center sill` said sills forming engine sub-bases on opposite sides of the longitudinal center line of the underframe, elements in said sub-bases extending transversely thereof and providing crank shaft bearings, all of said parts being formed in an integral structure.

26. In a railway vehicle' underframe, an

integral structure having longitudinal sill members forming an engine sub-base extending substantially the full depth of said members and being open at the bottom, and a deviding crank shaft bearings, and a detachable member for closing the bottom opening in said structure.

28. In a locomotive underframe integral structure, spaced longitudinal sill members having vertical webs, said webs forming the side walls of an engine sub-base, there being an opening in one of said walls for access to the interior of said sub-base, and a separate cover plate for closing said opening and secured to the latter.

29. In a locomotive underframe integral structure, spaced longitudinal sill members having vertical webs, said webs forming the side walls of an engine sub-base, said walls extending vertically to the bottom of the subbase, and transverse members between said side walls having crank shaft bearings.

30. In a railway vehicle underframe integral structure, longitudinal sill members having vertical webs, portions of which webs comprise a support for a generator, said portions being inclined so as to provide clearance between them for the generator housing.

31. In a railway vehicle underframe integral structure, longitudinal sill members having webs disposed vertically for the greater portion of their length but inclined throughout opposed portions of their length so as to provide a wider space between them to clear a generator housing mounted on said members.

A32. In a railway vehicle underframe integral structure, longitudinal sill members having vertical webs, a portion of the tops of said sills being offset transversely to support a generator housing and the lower portions of lsaid webs being inclined upwardly to clear the generator housing.

33. In a railway vehicle underframe integral structure, spaced longitudinal sill members the upper portions of which form supports for an engine and a generator, the portions forming supports for the generator being spaced apart a greater distance than the portions forming a support for the engine.

34. In a railway vehicle underframe integral structure, spaced longitudinal sill members forming supports for an engine and a generator, sa1d members being offset throughout a portion of their length to accommodate the variation in the widths of the engine and generator Vsupported thereon.

35. In a railway vehicle underframe integral structure, three longitudinal sill members, an engine sub-base formed integral with said structure between the center member and one of the other of said members, and another engine sub-base formed integral with said structure between the center member and the third of said members.

36. In a railway vehicle undertrame integral structure, three longitudinal sill members, and an engine sub-base, having crank shaft bearings, formed integral with and located between the center and one of the other of said members, and another engine sub-base having crank shaft bearings and formed integral with and located between the center and the third of said members.

37. In a railway vehicle underframe integral structure, an engine sub-base extending longitudinally of the structure and between the longitudinal center line thereof and the side of the structure.

38. In a railway vehicle, an underframe, and an engine sub-base within thesides or' said structure and extending longitudinally of said under-frame and spaced from the longitudinal center line thereof and constituting a structural element of said underframe.

39. In a railway vehicle underframe integral structure, an engine sub-base within the sides of said structure and arranged longitudinally thereof and spaced from the longitudinal center line thereof and including crank shaft bearings.

40. In a railway vehicle underframe, bolsters, and a plurality of engine sub-bases integral with and located between said holsters.

41. In a railway vehicle underframe integral structure including bolsters and a plurality of engine sub-bases having crank shaft bearings, said sub-bases being integral with and located between said holsters.

42. In a railway vehicle underframe integral structure comprising a box section center sill member, a longitudinal sill member on each side of said center sill member, a pair of engine sub-bases arranged longitudinally of said structure, said bases being arranged symmetrically with respect to the lon `tudinal and transverse center lines of sai structure.

43. In a railway vehicle underframe integral structure, a center sill member and longitudinal sills on each side of said center sill member, a pair of engine sub-bases arranged longitudinally of said structure, generator supports on said member and sills in line with said sub-bases, each of said generator supports and sub-base portions being located equal distances on opposite sides of the transverse and longitudinal center lines of said structure. es

44. In a railway vehicle underirame inteal structure, center sill members, longitudinal sill members outside of said center sill members, engine sub-bases arranged longitudinally of said structure between said center` sill members and said outside sill members, said sub-bases being arranged symmetrically with the longitudinal and transverse center lines of said structure.

45. In a railway vehicle underframe integral structure, a box-shaped center sill member, longitudinal sill members on each side of said center sill member and engine subbases disposed longitudinally of the underframe on opposite sides of said center sill member and parallel to each other and formed integrally with said members.

46. In a railway vehicle underframe integral structure, end sills, side sills, and intermediate longitudinal and transverse members allhaving vertical webs, said webs having substantially horizontally aligned openings to` receive piping extending along said underframe adjacent the inner sides of said side and end sills.

47. In a railway vehicle underframe integral structure comprising end sills, side sills, and intermediate longitudinal and transverse members having vertical webs, said webs having substantially horizontally aligned openings to.accommodate water circulating pipes or train pipes extending along the nner periphery of the structure.

48. In a railway vehicle, an underframe 1ntegral structure having an end sill and a side sill and intermediate sills extending inwardly from said end sill and transverse members extending inwardly from said side sill, said intermediate sills and transverse members having vertical webs with substantially horizontally aligned openings adjacent the inner sides of said sills and members, and circulating or train pipes extending through salid openings along said end sill and side si l.

49. In a railway vehicle underframe integral structure, a box shaped center sill and a box shaped bolster, the side walls of said sill and said bolster intersecting the central portion of said sill and bolster and said central portion between said walls being open top and bottom so as to form an air conduit.

50. In a railway Vehicle underframeintegral structure, a side sill having its intermediate portion on a higher level than its end portions, and a continuous horizontal pad on the outside of said sill for mounting side sheets, 'the intermediate portion of said pad being spaced from the top of said sill and lthe end portions of said pad being located on the upper portions of said sill end portions.

51. In a railway vehicle underframe including a side sill having its intermediate portion on a higher level than its end portions, pads on top of said sill along its outer edge, and means secured to said pads on said end portions for mounting side sheets, and vertically disposed means secured lto said les ' form separate reservoirs located on opposite.

pads on said intermediate portion for brac- 1ng the side sheets.

52. In a locomotive underframe integral structure, engine supporting elements includin spaced longitudinal sill members having su stantially vertical webs, and substantially horizontal members connecting said webs and forming therewith a box-like engine sub-base below said elements.

a bolster provided with a center plate, a`

blower housing mounted on said bolster over said centerplate, and an air conduit extending from said housing downwardly through said structure and said center-plate.

57. In a railway vehicle, an uderframe integral structure including a box-shape center 'sill and a box-shape bolster having a center plate a blower housing on said bolster over said center-plate, and an air conduit extending from said housing downwardly through said structure, the walls of said center sill and bolster forming walls of said conduit.

`58. In a railway vehicle underframe, a longitudinal center sill, and a fluid chamber located outside of said sill and integral therewith with a portion of said sill forming a part of the wall of said chamber.

59. In a railway vehicle underframe, a

bolster, and a reservoir member forming a p part of the underframe structure with its end ormed by a bolster wall.

60. A railway vehicle underframe comprising an integral device including center sill structure, a substantially horizontal web eX- tending on o posite sides of said center sill structure, an upright members co-operating with said web and center sill structure to sides of said center sill structure.

61. In a railway vehicle underframe, a plurality of reservoirs arranged side by side and extending longitudinally of the underframe with their ad] acent walls constituting silllike members of the underframe.

62. A railway-vehicle frame comprising a unitary casting constituting an under-bed for a prime mover, integral fuel tanks, a platform and a bumper, means on the casting for supporting a car body and means for mounting the frame on a supporting truck.

63. An under-bed for a heat engine and an electric generator that comprises an integral casting disposed to support the engine and generator in proper alignment, said casting being provided with integral fuel and water tanks.

" 64. An under-bed for a heat engine and an" electric generator that comprises an integral casting disposed to support the engine and generator in proper alignment, said casting being provided with integral fuel and water tanks, means for supporting a car body on the casting and means for mounting the casting on a railway-vehicle truck.

65. A unitary railway-vehicle structural member comprising a frame, an engine crank case and a plurality of tanks formed integrally with the frame.

66. A railway-vehicle frame comprising a unitary casting constituting an under-bed for a prime mover, tanks associated with the prime mover, means on the casting for supporting a car body, a running gear for supporting the frame and motors for propelling the vehicle, the tanks for said prime mover being formed integrally with the unitaryv casting.

In testimony whereof I hereunto aix my signature this 31st day of Jan., 1929.

WILLIAM M. SHEEHAN. 

